<template>
  <div class="app-container">
    <el-form :model="queryParams" ref="queryForm" :inline="true" v-show="showSearch" label-width="68px">
      <el-form-item label="任务" prop="taskId">
        <el-select v-model="queryParams.taskId" placeholder="请选择任务" clearable size="small">
          <el-option
            v-for="task in tasks"
            :key="task.id"
            :label="task.name"
            :value="task.id"
          />
        </el-select>
      </el-form-item>
      <el-form-item>
        <el-button type="primary" icon="el-icon-search" size="mini" @click="handleQuery">搜索</el-button>
        <el-button icon="el-icon-refresh" size="mini" @click="resetQuery">重置</el-button>
      </el-form-item>
    </el-form>

    <el-row :gutter="10" class="mb8">
      <el-col :span="1.5">
        <el-button
          type="primary"
          plain
          icon="el-icon-plus"
          size="mini"
          @click="handleAdd"
          v-hasPermi="['system:task:edit']"
        >添加依赖
        </el-button>
      </el-col>
      <el-col :span="1.5">
        <el-button
          type="danger"
          plain
          icon="el-icon-delete"
          size="mini"
          :disabled="multiple"
          @click="handleDelete"
          v-hasPermi="['system:task:edit']"
        >删除依赖
        </el-button>
      </el-col>
      <right-toolbar :showSearch.sync="showSearch" @queryTable="getList"></right-toolbar>
    </el-row>

    <el-table v-loading="loading" :data="dependencyList" @selection-change="handleSelectionChange">
      <el-table-column type="selection" width="55" align="center"/>
      <el-table-column label="任务" align="center" prop="taskId">
        <template slot-scope="scope">
          <span>{{ getTaskName(scope.row.taskId) }}</span>
        </template>
      </el-table-column>
      <el-table-column label="依赖任务" align="center" prop="dependsOnTaskId">
        <template slot-scope="scope">
          <span>{{ getTaskName(scope.row.dependsOnTaskId) }}</span>
        </template>
      </el-table-column>
      <el-table-column label="创建时间" align="center" prop="createTime" width="180">
        <template slot-scope="scope">
          <span>{{ parseTime(scope.row.createTime) }}</span>
        </template>
      </el-table-column>
      <el-table-column label="操作" align="center" class-name="small-padding fixed-width">
        <template slot-scope="scope">
          <el-button
            size="mini"
            type="text"
            icon="el-icon-delete"
            @click="handleDelete(scope.row)"
            v-hasPermi="['system:task:edit']"
          >删除
          </el-button>
        </template>
      </el-table-column>
    </el-table>

    <pagination
      v-show="total>0"
      :total="total"
      :page.sync="queryParams.pageNum"
      :limit.sync="queryParams.pageSize"
      @pagination="getList"
    />

    <!-- 添加依赖对话框 -->
    <el-dialog :title="title" :visible.sync="open" width="500px" append-to-body>
      <el-form ref="form" :model="form" :rules="rules" label-width="80px">
        <el-form-item label="任务" prop="taskId">
          <el-select v-model="form.taskId" placeholder="请选择任务">
            <el-option
              v-for="task in tasks"
              :key="task.id"
              :label="task.name"
              :value="task.id"
            />
          </el-select>
        </el-form-item>
        <el-form-item label="依赖任务" prop="dependsOnTaskId">
          <el-select v-model="form.dependsOnTaskId" placeholder="请选择依赖任务">
            <el-option
              v-for="task in tasks"
              :key="task.id"
              :label="task.name"
              :value="task.id"
            />
          </el-select>
        </el-form-item>
      </el-form>
      <div slot="footer" class="dialog-footer">
        <el-button type="primary" @click="submitForm">确 定</el-button>
        <el-button @click="cancel">取 消</el-button>
      </div>
    </el-dialog>
  </div>
</template>

<script>
import {listTask, listDependency, addDependency, delDependency} from "@/api/hanyun/task";

export default {
  name: "TaskDependency",
  data() {
    return {
      // 遮罩层
      loading: true,
      // 选中数组
      ids: [],
      // 非多个禁用
      multiple: true,
      // 显示搜索条件
      showSearch: true,
      // 总条数
      total: 0,
      // 依赖关系表格数据
      dependencyList: [],
      // 任务列表
      tasks: [],
      // 弹出层标题
      title: "",
      // 是否显示弹出层
      open: false,
      // 查询参数
      queryParams: {
        pageNum: 1,
        pageSize: 10,
        taskId: null
      },
      // 表单参数
      form: {},
      // 表单校验
      rules: {
        taskId: [
          {required: true, message: "任务不能为空", trigger: "change"}
        ],
        dependsOnTaskId: [
          {required: true, message: "依赖任务不能为空", trigger: "change"}
        ]
      }
    };
  },
  created() {
    this.getList();
    this.getTasks();
  },
  methods: {
    /** 查询依赖关系列表 */
    getList() {
      this.loading = true;
      listDependency(this.queryParams).then(response => {
        this.dependencyList = response.rows;
        this.total = response.total;
        this.loading = false;
      });
    },
    /** 获取任务列表 */
    getTasks() {
      listTask().then(response => {
        this.tasks = response.rows;
      });
    },
    /** 获取任务名称 */
    getTaskName(taskId) {
      const task = this.tasks.find(t => t.id === taskId);
      return task ? task.name : taskId;
    },
    // 取消按钮
    cancel() {
      this.open = false;
      this.reset();
    },
    // 表单重置
    reset() {
      this.form = {
        id: null,
        taskId: null,
        dependsOnTaskId: null
      };
      this.resetForm("form");
    },
    /** 搜索按钮操作 */
    handleQuery() {
      this.queryParams.pageNum = 1;
      this.getList();
    },
    /** 重置按钮操作 */
    resetQuery() {
      this.resetForm("queryForm");
      this.handleQuery();
    },
    // 多选框选中数据
    handleSelectionChange(selection) {
      this.ids = selection.map(item => item.id);
      this.multiple = !selection.length;
    },
    /** 新增按钮操作 */
    handleAdd() {
      this.reset();
      this.open = true;
      this.title = "添加依赖关系";
    },
    /** 提交按钮 */
    submitForm() {
      this.$refs["form"].validate(valid => {
        if (valid) {
          addDependency(this.form).then(response => {
            this.$modal.msgSuccess("新增成功");
            this.open = false;
            this.getList();
          });
        }
      });
    },
    /** 删除按钮操作 */
    handleDelete(row) {
      const ids = row.id || this.ids;
      this.$modal.confirm('是否确认删除依赖关系编号为"' + ids + '"的数据项？').then(function () {
        return delDependency(ids);
      }).then(() => {
        this.getList();
        this.$modal.msgSuccess("删除成功");
      }).catch(() => {
      });
    }
  }
};
</script>
